Great Plains YP1625 Material Rate - Manual (Page 59)

Great Plains Mfg., Inc.
55
11/23/2011 401-263B
Ground Drive Fertilizer Rate
Refer to Figure 16 and Figure 17
Coarse rate is set by a single “driving” sprocket
on the
ground drive assembly. Fine rate is set on a dial (setting
hub)
at the pump , using a tool supplied with the
pump.
Rate settings may be established in any of three ways:
• the table on the next page,
• the slide chart provided with the pump, or;
• a calculator on the JohnBlue internet web site
( www.cds-johnblue.com )
1. Check plumbing setup. See “Setting Relief Valve”
and “Strainer” in the Operator Manual.
2. Determine Driving sprocket (15T or 47T) required
from table, slide chart or web calculator. If this
sprocket is already installed on driven shaft, skip to
step 7. Otherwise, to change sprocket, continue with
step 3.
3. Remove knob and guard . Loosen idler , and
remove chain from lower jackshaft .
4. Select the new sprocket from the storage shaft .
Remove the pins, and exchange sprockets. Store the
previous sprocket on the storage shaft.
5. Remount the chain . Re-engage idler , tightening
so that the longest span of the chain has 1 ⁄
4
in (6mm)
of slack.
6. Remount guard and secure with knob .
Refer to Figure 17
7. Use the box-wrench end of the JohnBlue 115681-01
tool, and loosen the setting pointer nut
.
8. Use the other end of the tool to rotate the dial to
the setting determined by table, slide chart or web.
9. Re-tighten pointer nut.
Null4-AAC:
Null4:
IMPORTANT !
Contact wheel and chain system operate whenever
the planter is lowered and in motion. If planting with-
out fertilizing, the pump must not be allowed to run
dry. Disconnect chain or remove sprocket.
Figure 16
John Blue Pump
28416
2
1
3
4
5
6
7
8
1
2 3
4 5 6
7 1
8
7 6
5 4
Null4:
Figure 17
Pump Dial
26155
2
8
8
2
Null4:
Figure 18
JohnBlue Slide Chart
26156